Update everything
This commit is contained in:
Colin Frei
parent
bf368181a4
commit
72a485d6e8
319 changed files with 67958 additions and 13948 deletions
429
lib/resize/resizeWorker.js
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429
lib/resize/resizeWorker.js
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//JavaScript Image Resizer (c) 2012 - Grant Galitz
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var resizeWorker = null;
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self.onmessage = function (event) {
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switch (event.data[0]) {
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case "setup":
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resizeWorker = new Resize(event.data[1], event.data[2], event.data[3], event.data[4], event.data[5], event.data[6]);
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break;
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case "resize":
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resizeWorker.resize(event.data[1]);
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}
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}
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function Resize(widthOriginal, heightOriginal, targetWidth, targetHeight, colorChannels, interpolationPass) {
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this.widthOriginal = widthOriginal;
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this.heightOriginal = heightOriginal;
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this.targetWidth = targetWidth;
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this.targetHeight = targetHeight;
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this.colorChannels = colorChannels;
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this.interpolationPass = !!interpolationPass;
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this.targetWidthMultipliedByChannels = this.targetWidth * this.colorChannels;
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this.originalWidthMultipliedByChannels = this.widthOriginal * this.colorChannels;
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this.originalHeightMultipliedByChannels = this.heightOriginal * this.colorChannels;
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this.widthPassResultSize = this.targetWidthMultipliedByChannels * this.heightOriginal;
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this.finalResultSize = this.targetWidthMultipliedByChannels * this.targetHeight;
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this.initialize();
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}
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Resize.prototype.initialize = function () {
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//Perform some checks:
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if (this.widthOriginal > 0 && this.heightOriginal > 0 && this.targetWidth > 0 && this.targetHeight > 0) {
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this.configurePasses();
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}
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else {
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throw(new Error("Invalid settings specified for the resizer."));
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}
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}
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Resize.prototype.configurePasses = function () {
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if (this.widthOriginal == this.targetWidth) {
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//Bypass the width resizer pass:
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this.resizeWidth = this.bypassResizer;
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}
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else {
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//Setup the width resizer pass:
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this.ratioWeightWidthPass = this.widthOriginal / this.targetWidth;
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if (this.ratioWeightWidthPass < 1 && this.interpolationPass) {
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this.initializeFirstPassBuffers(true);
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this.resizeWidth = (this.colorChannels == 4) ? this.resizeWidthInterpolatedRGBA : this.resizeWidthInterpolatedRGB;
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}
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else {
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this.initializeFirstPassBuffers(false);
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this.resizeWidth = (this.colorChannels == 4) ? this.resizeWidthRGBA : this.resizeWidthRGB;
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}
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}
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if (this.heightOriginal == this.targetHeight) {
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//Bypass the height resizer pass:
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this.resizeHeight = this.bypassResizer;
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}
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else {
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//Setup the height resizer pass:
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this.ratioWeightHeightPass = this.heightOriginal / this.targetHeight;
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if (this.ratioWeightHeightPass < 1 && this.interpolationPass) {
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this.initializeSecondPassBuffers(true);
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this.resizeHeight = this.resizeHeightInterpolated;
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}
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else {
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this.initializeSecondPassBuffers(false);
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this.resizeHeight = (this.colorChannels == 4) ? this.resizeHeightRGBA : this.resizeHeightRGB;
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}
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}
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}
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Resize.prototype.resizeWidthRGB = function (buffer) {
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var ratioWeight = this.ratioWeightWidthPass;
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var ratioWeightDivisor = 1 / ratioWeight;
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var weight = 0;
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var amountToNext = 0;
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var actualPosition = 0;
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var currentPosition = 0;
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var line = 0;
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var pixelOffset = 0;
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var outputOffset = 0;
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var nextLineOffsetOriginalWidth = this.originalWidthMultipliedByChannels - 2;
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var nextLineOffsetTargetWidth = this.targetWidthMultipliedByChannels - 2;
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var output = this.outputWidthWorkBench;
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var outputBuffer = this.widthBuffer;
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do {
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for (line = 0; line < this.originalHeightMultipliedByChannels;) {
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output[line++] = 0;
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output[line++] = 0;
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output[line++] = 0;
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}
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weight = ratioWeight;
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do {
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amountToNext = 1 + actualPosition - currentPosition;
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if (weight >= amountToNext) {
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for (line = 0, pixelOffset = actualPosition; line < this.originalHeightMultipliedByChannels; pixelOffset += nextLineOffsetOriginalWidth) {
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output[line++] += buffer[pixelOffset++] * amountToNext;
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output[line++] += buffer[pixelOffset++] * amountToNext;
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output[line++] += buffer[pixelOffset] * amountToNext;
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}
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currentPosition = actualPosition = actualPosition + 3;
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weight -= amountToNext;
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}
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else {
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for (line = 0, pixelOffset = actualPosition; line < this.originalHeightMultipliedByChannels; pixelOffset += nextLineOffsetOriginalWidth) {
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output[line++] += buffer[pixelOffset++] * weight;
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output[line++] += buffer[pixelOffset++] * weight;
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output[line++] += buffer[pixelOffset] * weight;
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}
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currentPosition += weight;
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break;
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}
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} while (weight > 0 && actualPosition < this.originalWidthMultipliedByChannels);
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for (line = 0, pixelOffset = outputOffset; line < this.originalHeightMultipliedByChannels; pixelOffset += nextLineOffsetTargetWidth) {
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outputBuffer[pixelOffset++] = output[line++] * ratioWeightDivisor;
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outputBuffer[pixelOffset++] = output[line++] * ratioWeightDivisor;
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outputBuffer[pixelOffset] = output[line++] * ratioWeightDivisor;
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}
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outputOffset += 3;
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} while (outputOffset < this.targetWidthMultipliedByChannels);
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return outputBuffer;
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}
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Resize.prototype.resizeWidthInterpolatedRGB = function (buffer) {
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var ratioWeight = this.ratioWeightWidthPass;
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var weight = 0;
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var finalOffset = 0;
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var pixelOffset = 0;
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var firstWeight = 0;
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var secondWeight = 0;
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var outputBuffer = this.widthBuffer;
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//Handle for only one interpolation input being valid for start calculation:
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for (var targetPosition = 0; weight < 1/3; targetPosition += 3, weight += ratioWeight) {
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for (finalOffset = targetPosition, pixelOffset = 0; finalOffset < this.widthPassResultSize; pixelOffset += this.originalWidthMultipliedByChannels, finalOffset += this.targetWidthMultipliedByChannels) {
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outputBuffer[finalOffset] = buffer[pixelOffset];
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outputBuffer[finalOffset + 1] = buffer[pixelOffset + 1];
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outputBuffer[finalOffset + 2] = buffer[pixelOffset + 2];
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}
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}
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//Adjust for overshoot of the last pass's counter:
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weight -= 1/3;
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for (var interpolationWidthSourceReadStop = this.widthOriginal - 1; weight < interpolationWidthSourceReadStop; targetPosition += 3, weight += ratioWeight) {
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//Calculate weightings:
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secondWeight = weight % 1;
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firstWeight = 1 - secondWeight;
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//Interpolate:
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for (finalOffset = targetPosition, pixelOffset = Math.floor(weight) * 3; finalOffset < this.widthPassResultSize; pixelOffset += this.originalWidthMultipliedByChannels, finalOffset += this.targetWidthMultipliedByChannels) {
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outputBuffer[finalOffset] = (buffer[pixelOffset] * firstWeight) + (buffer[pixelOffset + 3] * secondWeight);
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outputBuffer[finalOffset + 1] = (buffer[pixelOffset + 1] * firstWeight) + (buffer[pixelOffset + 4] * secondWeight);
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outputBuffer[finalOffset + 2] = (buffer[pixelOffset + 2] * firstWeight) + (buffer[pixelOffset + 5] * secondWeight);
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}
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}
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//Handle for only one interpolation input being valid for end calculation:
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for (interpolationWidthSourceReadStop = this.originalWidthMultipliedByChannels - 3; targetPosition < this.targetWidthMultipliedByChannels; targetPosition += 3) {
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for (finalOffset = targetPosition, pixelOffset = interpolationWidthSourceReadStop; finalOffset < this.widthPassResultSize; pixelOffset += this.originalWidthMultipliedByChannels, finalOffset += this.targetWidthMultipliedByChannels) {
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outputBuffer[finalOffset] = buffer[pixelOffset];
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outputBuffer[finalOffset + 1] = buffer[pixelOffset + 1];
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outputBuffer[finalOffset + 2] = buffer[pixelOffset + 2];
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}
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}
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return outputBuffer;
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}
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Resize.prototype.resizeWidthRGBA = function (buffer) {
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var ratioWeight = this.ratioWeightWidthPass;
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var ratioWeightDivisor = 1 / ratioWeight;
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var weight = 0;
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var amountToNext = 0;
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var actualPosition = 0;
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var currentPosition = 0;
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var line = 0;
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var pixelOffset = 0;
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var outputOffset = 0;
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var nextLineOffsetOriginalWidth = this.originalWidthMultipliedByChannels - 3;
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var nextLineOffsetTargetWidth = this.targetWidthMultipliedByChannels - 3;
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var output = this.outputWidthWorkBench;
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var outputBuffer = this.widthBuffer;
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do {
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for (line = 0; line < this.originalHeightMultipliedByChannels;) {
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output[line++] = 0;
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output[line++] = 0;
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output[line++] = 0;
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output[line++] = 0;
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}
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weight = ratioWeight;
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do {
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amountToNext = 1 + actualPosition - currentPosition;
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if (weight >= amountToNext) {
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for (line = 0, pixelOffset = actualPosition; line < this.originalHeightMultipliedByChannels; pixelOffset += nextLineOffsetOriginalWidth) {
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output[line++] += buffer[pixelOffset++] * amountToNext;
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output[line++] += buffer[pixelOffset++] * amountToNext;
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output[line++] += buffer[pixelOffset++] * amountToNext;
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output[line++] += buffer[pixelOffset] * amountToNext;
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}
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currentPosition = actualPosition = actualPosition + 4;
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weight -= amountToNext;
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}
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else {
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for (line = 0, pixelOffset = actualPosition; line < this.originalHeightMultipliedByChannels; pixelOffset += nextLineOffsetOriginalWidth) {
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output[line++] += buffer[pixelOffset++] * weight;
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output[line++] += buffer[pixelOffset++] * weight;
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output[line++] += buffer[pixelOffset++] * weight;
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output[line++] += buffer[pixelOffset] * weight;
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}
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currentPosition += weight;
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break;
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}
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} while (weight > 0 && actualPosition < this.originalWidthMultipliedByChannels);
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for (line = 0, pixelOffset = outputOffset; line < this.originalHeightMultipliedByChannels; pixelOffset += nextLineOffsetTargetWidth) {
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outputBuffer[pixelOffset++] = output[line++] * ratioWeightDivisor;
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outputBuffer[pixelOffset++] = output[line++] * ratioWeightDivisor;
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outputBuffer[pixelOffset++] = output[line++] * ratioWeightDivisor;
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outputBuffer[pixelOffset] = output[line++] * ratioWeightDivisor;
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}
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outputOffset += 4;
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} while (outputOffset < this.targetWidthMultipliedByChannels);
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return outputBuffer;
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}
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Resize.prototype.resizeWidthInterpolatedRGBA = function (buffer) {
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var ratioWeight = this.ratioWeightWidthPass;
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var weight = 0;
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var finalOffset = 0;
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var pixelOffset = 0;
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var firstWeight = 0;
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var secondWeight = 0;
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var outputBuffer = this.widthBuffer;
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//Handle for only one interpolation input being valid for start calculation:
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for (var targetPosition = 0; weight < 1/3; targetPosition += 4, weight += ratioWeight) {
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for (finalOffset = targetPosition, pixelOffset = 0; finalOffset < this.widthPassResultSize; pixelOffset += this.originalWidthMultipliedByChannels, finalOffset += this.targetWidthMultipliedByChannels) {
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outputBuffer[finalOffset] = buffer[pixelOffset];
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outputBuffer[finalOffset + 1] = buffer[pixelOffset + 1];
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outputBuffer[finalOffset + 2] = buffer[pixelOffset + 2];
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outputBuffer[finalOffset + 3] = buffer[pixelOffset + 3];
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}
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}
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//Adjust for overshoot of the last pass's counter:
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weight -= 1/3;
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for (var interpolationWidthSourceReadStop = this.widthOriginal - 1; weight < interpolationWidthSourceReadStop; targetPosition += 4, weight += ratioWeight) {
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//Calculate weightings:
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secondWeight = weight % 1;
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firstWeight = 1 - secondWeight;
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//Interpolate:
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for (finalOffset = targetPosition, pixelOffset = Math.floor(weight) * 4; finalOffset < this.widthPassResultSize; pixelOffset += this.originalWidthMultipliedByChannels, finalOffset += this.targetWidthMultipliedByChannels) {
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outputBuffer[finalOffset] = (buffer[pixelOffset] * firstWeight) + (buffer[pixelOffset + 4] * secondWeight);
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outputBuffer[finalOffset + 1] = (buffer[pixelOffset + 1] * firstWeight) + (buffer[pixelOffset + 5] * secondWeight);
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outputBuffer[finalOffset + 2] = (buffer[pixelOffset + 2] * firstWeight) + (buffer[pixelOffset + 6] * secondWeight);
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outputBuffer[finalOffset + 3] = (buffer[pixelOffset + 3] * firstWeight) + (buffer[pixelOffset + 7] * secondWeight);
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}
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}
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//Handle for only one interpolation input being valid for end calculation:
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for (interpolationWidthSourceReadStop = this.originalWidthMultipliedByChannels - 4; targetPosition < this.targetWidthMultipliedByChannels; targetPosition += 4) {
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for (finalOffset = targetPosition, pixelOffset = interpolationWidthSourceReadStop; finalOffset < this.widthPassResultSize; pixelOffset += this.originalWidthMultipliedByChannels, finalOffset += this.targetWidthMultipliedByChannels) {
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outputBuffer[finalOffset] = buffer[pixelOffset];
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outputBuffer[finalOffset + 1] = buffer[pixelOffset + 1];
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outputBuffer[finalOffset + 2] = buffer[pixelOffset + 2];
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outputBuffer[finalOffset + 3] = buffer[pixelOffset + 3];
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}
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}
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return outputBuffer;
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}
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Resize.prototype.resizeHeightRGB = function (buffer) {
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var ratioWeight = this.ratioWeightHeightPass;
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var ratioWeightDivisor = 1 / ratioWeight;
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var weight = 0;
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var amountToNext = 0;
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var actualPosition = 0;
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var currentPosition = 0;
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var pixelOffset = 0;
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var outputOffset = 0;
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var output = this.outputHeightWorkBench;
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var outputBuffer = this.heightBuffer;
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do {
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels;) {
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output[pixelOffset++] = 0;
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output[pixelOffset++] = 0;
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output[pixelOffset++] = 0;
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}
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weight = ratioWeight;
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do {
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amountToNext = 1 + actualPosition - currentPosition;
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if (weight >= amountToNext) {
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels;) {
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output[pixelOffset++] += buffer[actualPosition++] * amountToNext;
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output[pixelOffset++] += buffer[actualPosition++] * amountToNext;
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output[pixelOffset++] += buffer[actualPosition++] * amountToNext;
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}
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currentPosition = actualPosition;
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weight -= amountToNext;
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}
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else {
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for (pixelOffset = 0, amountToNext = actualPosition; pixelOffset < this.targetWidthMultipliedByChannels;) {
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output[pixelOffset++] += buffer[amountToNext++] * weight;
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output[pixelOffset++] += buffer[amountToNext++] * weight;
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output[pixelOffset++] += buffer[amountToNext++] * weight;
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}
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currentPosition += weight;
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break;
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}
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} while (weight > 0 && actualPosition < this.widthPassResultSize);
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels;) {
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outputBuffer[outputOffset++] = Math.round(output[pixelOffset++] * ratioWeightDivisor);
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outputBuffer[outputOffset++] = Math.round(output[pixelOffset++] * ratioWeightDivisor);
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outputBuffer[outputOffset++] = Math.round(output[pixelOffset++] * ratioWeightDivisor);
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}
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} while (outputOffset < this.finalResultSize);
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return outputBuffer;
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}
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Resize.prototype.resizeHeightInterpolated = function (buffer) {
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var ratioWeight = this.ratioWeightHeightPass;
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var weight = 0;
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var finalOffset = 0;
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var pixelOffset = 0;
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var pixelOffsetAccumulated = 0;
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var pixelOffsetAccumulated2 = 0;
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var firstWeight = 0;
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var secondWeight = 0;
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var outputBuffer = this.heightBuffer;
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//Handle for only one interpolation input being valid for start calculation:
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for (; weight < 1/3; weight += ratioWeight) {
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels;) {
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outputBuffer[finalOffset++] = Math.round(buffer[pixelOffset++]);
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}
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}
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//Adjust for overshoot of the last pass's counter:
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weight -= 1/3;
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for (var interpolationHeightSourceReadStop = this.heightOriginal - 1; weight < interpolationHeightSourceReadStop; weight += ratioWeight) {
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//Calculate weightings:
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secondWeight = weight % 1;
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firstWeight = 1 - secondWeight;
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//Interpolate:
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pixelOffsetAccumulated = Math.floor(weight) * this.targetWidthMultipliedByChannels;
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pixelOffsetAccumulated2 = pixelOffsetAccumulated + this.targetWidthMultipliedByChannels;
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels; ++pixelOffset) {
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outputBuffer[finalOffset++] = Math.round((buffer[pixelOffsetAccumulated++] * firstWeight) + (buffer[pixelOffsetAccumulated2++] * secondWeight));
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}
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}
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//Handle for only one interpolation input being valid for end calculation:
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while (finalOffset < this.finalResultSize) {
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for (pixelOffset = 0, pixelOffsetAccumulated = interpolationHeightSourceReadStop * this.targetWidthMultipliedByChannels; pixelOffset < this.targetWidthMultipliedByChannels; ++pixelOffset) {
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outputBuffer[finalOffset++] = Math.round(buffer[pixelOffsetAccumulated++]);
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}
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}
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return outputBuffer;
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}
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Resize.prototype.resizeHeightRGBA = function (buffer) {
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var ratioWeight = this.ratioWeightHeightPass;
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var ratioWeightDivisor = 1 / ratioWeight;
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var weight = 0;
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var amountToNext = 0;
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var actualPosition = 0;
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var currentPosition = 0;
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var pixelOffset = 0;
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var outputOffset = 0;
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var output = this.outputHeightWorkBench;
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var outputBuffer = this.heightBuffer;
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do {
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels;) {
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output[pixelOffset++] = 0;
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output[pixelOffset++] = 0;
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output[pixelOffset++] = 0;
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output[pixelOffset++] = 0;
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}
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weight = ratioWeight;
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do {
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amountToNext = 1 + actualPosition - currentPosition;
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if (weight >= amountToNext) {
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels;) {
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output[pixelOffset++] += buffer[actualPosition++] * amountToNext;
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output[pixelOffset++] += buffer[actualPosition++] * amountToNext;
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output[pixelOffset++] += buffer[actualPosition++] * amountToNext;
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output[pixelOffset++] += buffer[actualPosition++] * amountToNext;
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}
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currentPosition = actualPosition;
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weight -= amountToNext;
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}
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else {
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for (pixelOffset = 0, amountToNext = actualPosition; pixelOffset < this.targetWidthMultipliedByChannels;) {
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output[pixelOffset++] += buffer[amountToNext++] * weight;
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output[pixelOffset++] += buffer[amountToNext++] * weight;
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output[pixelOffset++] += buffer[amountToNext++] * weight;
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output[pixelOffset++] += buffer[amountToNext++] * weight;
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}
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currentPosition += weight;
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break;
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}
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} while (weight > 0 && actualPosition < this.widthPassResultSize);
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for (pixelOffset = 0; pixelOffset < this.targetWidthMultipliedByChannels;) {
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outputBuffer[outputOffset++] = Math.round(output[pixelOffset++] * ratioWeightDivisor);
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outputBuffer[outputOffset++] = Math.round(output[pixelOffset++] * ratioWeightDivisor);
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outputBuffer[outputOffset++] = Math.round(output[pixelOffset++] * ratioWeightDivisor);
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outputBuffer[outputOffset++] = Math.round(output[pixelOffset++] * ratioWeightDivisor);
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}
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} while (outputOffset < this.finalResultSize);
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return outputBuffer;
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}
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Resize.prototype.resize = function (buffer) {
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self.postMessage(this.resizeHeight(this.resizeWidth(buffer)));
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||||
}
|
||||
Resize.prototype.bypassResizer = function (buffer) {
|
||||
//Just return the buffer passsed:
|
||||
return buffer;
|
||||
}
|
||||
Resize.prototype.initializeFirstPassBuffers = function (BILINEARAlgo) {
|
||||
//Initialize the internal width pass buffers:
|
||||
this.widthBuffer = this.generateFloatBuffer(this.widthPassResultSize);
|
||||
if (!BILINEARAlgo) {
|
||||
this.outputWidthWorkBench = this.generateFloatBuffer(this.originalHeightMultipliedByChannels);
|
||||
}
|
||||
}
|
||||
Resize.prototype.initializeSecondPassBuffers = function (BILINEARAlgo) {
|
||||
//Initialize the internal height pass buffers:
|
||||
this.heightBuffer = this.generateUint8Buffer(this.finalResultSize);
|
||||
if (!BILINEARAlgo) {
|
||||
this.outputHeightWorkBench = this.generateFloatBuffer(this.targetWidthMultipliedByChannels);
|
||||
}
|
||||
}
|
||||
Resize.prototype.generateFloatBuffer = function (bufferLength) {
|
||||
//Generate a float32 typed array buffer:
|
||||
try {
|
||||
return new Float32Array(bufferLength);
|
||||
}
|
||||
catch (error) {
|
||||
return [];
|
||||
}
|
||||
}
|
||||
Resize.prototype.generateUint8Buffer = function (bufferLength) {
|
||||
//Generate a uint8 typed array buffer:
|
||||
try {
|
||||
return new Uint8Array(bufferLength);
|
||||
}
|
||||
catch (error) {
|
||||
return [];
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue